Description

Fused silica, made from high garde silica stone, throuh high temperature fusing(1695-1720°c),cooling and smash and selecting.

The powder is of high purity and amorphous. With the high quality of low linear expansion coefficient, low stress and low radioactivity.

Chemical composition

Grit Size             60-120mesh                200-0mesh               325-0mesh

SiO2                   99.90%                        99.90%                      99.90%

Al2O3                 0.028%                        0.028%                      0.016%

Fe2O3                0.0045%                       0.0045%                    0.0028%

Na2O                  0.002%                        0.002%                      0.002%

Li2O                   2ppm                            2ppm                         2ppm

Specification

• Gravity: 2.0-2.2g/cm3;
• PH: 6.5-7.0
• Mohs hardness: 7.0

Size available:

• 4/6,6/16,30/60,60/120, 100mesh,120mesh,325mesh;
• 0.0-0.5mm,0.5-1.0mm,1-3mm,3-8mm,5-10mm;
• Micropowder can be supplied as required;

Application

• High advanced Refractory material;
• Ceramic industry;
• Chemisty industry;
• Electronic industry; 
• Casting industry.